/*
* Copyright 2013 Websquared, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.fastcatsearch.ir.perftest;
import junit.framework.TestCase;
public class MaskingSpeedTest extends TestCase {
public void testMaskVsMod(){
int size = 300000000;
int mask = 1000;
long st = System.currentTimeMillis();
for (int i = 0; i < size; i++) {
int m = i & (size - 1);
}
System.out.println("& : "+(System.currentTimeMillis() - st)+" ms");
st = System.currentTimeMillis();
for (int i = 0; i < size; i++) {
int m = i % size;
}
System.out.println("% : "+(System.currentTimeMillis() - st)+" ms");
}
}